Window-refrigerator.



provide the upper drip-edge 19, preferably also having the undercut portion similar to the groove 16 aforesaid. 'The exposed superficial surface of the upper- Wall 18 slopes downwardly and outwardly so that Water collected thereon Will drain awayover the ledge and leave the saine along the drip-edge 19. For the purpose of providing for a better insertion of this device in the Window opening of the building Wall, 4the upper Wall lO may have side `platforms 2l, the upper surfaces of which extend horizontally and interfit along a horizontal plane With an overhanging portion of the building Wall as is shown niost clearly.by the drawings. The side walls 22 of this device are preferably made integral with the other three Walls leaving an open space in the rear oi the box-sill which enables access to be had to its interior. A Ventilating aperv ture 23 extends through the front Wall 17,

and preferably terminates below the overhanging ledge 5 so as to be protected against the entry of rain, and arsirnilar Ventilating aperture 24 niay be provided in the side Wall it desired. The means for obtaining access tothe in'- terior of the box-sill may be built into or with the Window-iframe, so that 6 Will represent the ledge ot the Window-frame, .3 will represent a sliding sash and 9 Will represent a lower ledge, and 7 indicates a slide- Wayin the forni oi' an open frame, in which 'panels or doors such as S will slide.

The groove 12 is incorporated in the construction o the box to take advantage of the vertical air currents caused by the changing of the specific gravityof the air caused by changes in its temperature. While these changes may not be of great magnitude, they are suilicient to cause an upward current of n air, especially next to a Wall of a building which Will always be Warmer nan the surrounding'A atmosphere. These air currents will be compact WithinY the groove and forced through the orifices in the bottom of the boX, thereby providing a forced ventilation of the boX.

lt is pointed out that inasmuch as the box will be used as a refrigerator, principally during cold Weather, it is desirable to prevent the contents thereof from freezing. This is very eii`ectively prevented in the proposed construction by the above mentioned air-pocket Within the upper portion of the box and by utilizing for vent'lating, the vertical air currents which risenext to and'derive heat from the building Wall to a degree sutlicientto rob them of their intense frigidity.

It will thus be seen that this construction is not only simple, cheap and compact, but that it is essentially7 ornamental and conibines in a single structure all the advantages of an ordinary Window-sill as well as of an ordinary provision container'.

Having thus revealed niy invention, l claiin as new and desire to secure by Letters Patent of the United States:-

l. A hollow one-piece sill of plastic Inaterial forming a chamber serving as a container for provisions having vertical drip and ventilating apertures in that portion of its under surface which vprojects outside of the outer face of the building wall, and means providing access from the rear to said chamber.

27. A hollow one-piece sill of plastic material forming a chamber Yserving a container for provisions having Ventilating apertures ina portion of its under surface which projects outside of the outer face of the building wall, and with access from the rear to the interior of said chamber.

ln testimony whereof, I have hereunto set my hand.

THOMAS P. HACKETT. Witnesses OLIvnn B. KAISER,

C. B. Fosrrin. 

